CN116811194A - Single screw extruder - Google Patents
Single screw extruder Download PDFInfo
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- CN116811194A CN116811194A CN202311098814.9A CN202311098814A CN116811194A CN 116811194 A CN116811194 A CN 116811194A CN 202311098814 A CN202311098814 A CN 202311098814A CN 116811194 A CN116811194 A CN 116811194A
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- extrusion
- rigid coupling
- support
- pivot
- helical blade
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- 239000000463 material Substances 0.000 claims abstract description 98
- 238000001125 extrusion Methods 0.000 claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 230000008878 coupling Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 22
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 22
- 241001330002 Bambuseae Species 0.000 claims abstract description 22
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 22
- 239000011425 bamboo Substances 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 230000000670 limiting effect Effects 0.000 claims description 50
- 238000005485 electric heating Methods 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 235000012438 extruded product Nutrition 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 21
- 239000000110 cooling liquid Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of screw extruders, in particular to a single screw extruder. Including the support, the support rigid coupling has power pack and extrusion section of thick bamboo, extrusion section of thick bamboo installs the extrusion die head, power pack installs the pivot, the pivot is located the extrusion section of thick bamboo, the pivot rigid coupling has first helical blade, the pivot rigid coupling has first straight gear, the support rotates through the connecting rod and is provided with the second straight gear with first straight gear engagement, the extrusion section of thick bamboo rotates and is provided with first rotating turret, first rotating turret rigid coupling has the rolling disc, the rolling disc is equipped with the ring gear with second straight gear engagement, first rotating turret rigid coupling has second helical blade, the support is equipped with heating mechanism, extrusion die head is equipped with cooling body. According to the invention, through the staggered rotation of the second spiral blade and the first spiral blade, the materials are fully crushed, and the materials in the extrusion cylinder are uniformly heated and plasticized by matching with the heating mechanism, so that the temperature of the extruded materials is kept uniform through the cooling mechanism, and the quality of extruded products is ensured.
Description
Technical Field
The invention relates to the technical field of screw extruders, in particular to a single screw extruder.
Background
In the plastic extrusion molding apparatus, a plastic extruder, which is generally called a host, is a main processing link in a plastic extrusion molding production line, wherein the plastic extruder is divided into a ram extruder and a screw extruder, and the screw extruder is divided into a single screw extruder and a twin screw extruder.
In the working process of the existing single-screw extruder, as the sizes of materials added into the extruder are different, and the distances between different materials and heating equipment on the single-screw plastic extruder are different, partial materials are heated unevenly to cause insufficient plasticization, uneven plasticization of the materials in the extruder is caused, the surface of a subsequent extruded product is unsmooth, defects and unqualified products are caused, and the product quality is seriously affected.
Therefore, there is a need to develop a single screw extruder.
Disclosure of Invention
In order to overcome the above problems, the present invention provides a single screw extruder.
The technical implementation scheme of the invention is as follows: the utility model provides a single screw extruder, including the support, the support is equipped with control panel, the support has power unit and an extrusion section of thick bamboo through the support rigid coupling, the extrusion section of thick bamboo is equipped with the loading hopper, the extrusion die head is installed to one side that the power unit was kept away from to the extrusion section of thick bamboo, the pivot is installed to the power unit, the pivot is located the extrusion section of thick bamboo, the pivot rigid coupling has first helical blade, the pivot rigid coupling has first straight gear, the support rotates through the connecting rod and is provided with the second straight gear, second straight gear and first straight gear engagement, one side that the extrusion section of thick bamboo is close to the power unit rotates and is provided with first rotating turret, first rotating turret rigid coupling has the rolling disc, the rolling disc is equipped with the ring gear with second straight gear engagement, one side rigid coupling that the rolling disc was kept away from to first rotating turret has second helical blade, second helical blade is located between extrusion section of thick bamboo and the first helical blade, the support is equipped with the heating mechanism of even heating material, first helical blade is equipped with the turnover mechanism that is used for bulldozing the material in proper order, the extrusion die head is equipped with the cooling mechanism that is used for even cooling down, power unit, heating mechanism and cooling mechanism are all connected with the control panel electricity of support.
More preferably, the first helical blade has a pitch in the direction of the extrusion die head from the power unit which is gradually smaller for compacting the material.
More preferably, the heating mechanism comprises a transmission shaft, the transmission shaft rotates through the supporting shoe to set up in the support, the support has inlayed the protective housing, transmission shaft and pivot all penetrate the protective housing and rotate rather than being connected, pass through sprocket and chain drive between transmission shaft and the pivot, sprocket and chain are located the protective housing, the transmission shaft rigid coupling has the second rotating turret, the support is equipped with the rectangular hole, the spacing rotation of extrusion section of thick bamboo is provided with electric heating sleeve, electric heating sleeve rigid coupling has the hot plate that circumference equidistance distributes, electric heating sleeve and the hot plate that circumference equidistance distributes all are connected with the control panel electricity of support, electric heating sleeve rigid coupling has the fixed plate that is located the rectangular hole on the support, the extrusion section of thick bamboo has the arc pole through the connecting plate rigid coupling, the arc pole pierces the fixed plate and rather than sliding connection, the rigid coupling has the spring between the connecting plate of fixed plate and arc pole, fixed plate and the spacing cooperation of second rotating turret.
More preferably, the material turning mechanism comprises first limiting plates distributed at equal intervals in the circumferential direction, wherein the first limiting plates distributed at equal intervals in the circumferential direction are fixedly connected to the first helical blades, the first limiting plates are obliquely arranged, and the first limiting plates are fixedly connected with evenly distributed cutting knives.
More preferably, the cooling mechanism comprises a third rotating frame, the third rotating frame is rotationally arranged on the extrusion die head, the extrusion die head is fixedly connected with a second fixing shell and a third fixing shell through connecting rods, the second fixing shell and the third fixing shell are rotationally connected with the third rotating frame, the second fixing shell and the third fixing shell are respectively provided with a guide pipe, a liquid circulation unit is communicated between the guide pipe of the second fixing shell and the guide pipe of the third fixing shell, the liquid circulation unit is electrically connected with a control panel of the support, the third rotating frame is provided with two symmetrical annular cavities, uniformly distributed first guide holes and circumferentially equidistant second guide holes, the second fixing shell and the third fixing shell are respectively communicated with the adjacent annular cavities through the adjacent first guide holes, the two annular cavities are communicated with each other through circumferentially equidistant second guide holes, and the third rotating frame is provided with a rotating assembly for uniform rotation of the third rotating frame.
More preferably, the rotating assembly comprises an outer gear ring, the outer gear ring is fixedly connected to the third rotating frame, the outer gear ring is located between the second fixed shell and the third fixed shell, the transmission shaft is fixedly connected with a third spur gear, and the third spur gear is meshed with the outer gear ring.
More preferably, still including the extrusion mechanism that is used for extruding the interior material of extrusion section of thick bamboo, the extruder constructs and sets up in the extrusion section of thick bamboo, extrusion mechanism is including first fixed shell, first fixed shell rigid coupling is in the extrusion section of thick bamboo, first fixed shell is equipped with the guide way, the guide way is the wave, first fixed shell rotates and is provided with the spline pole, the spline pole be equipped with guide way complex projection, the pivot be equipped with spline pole spacing gliding spout, the spline pole rigid coupling has third helical blade, third helical blade and pivot sliding connection, third helical blade is equipped with the first through-hole of circumference equidistance distribution.
More preferably, the first through hole is inclined and used for guiding the material to be close to the inner wall of the extrusion cylinder.
More preferably, the device further comprises a limiting mechanism, wherein the limiting mechanism is arranged on the rotating shaft and comprises second limiting plates which are uniformly distributed, the second limiting plates which are uniformly distributed are fixedly connected to the rotating shaft, the second limiting plates are provided with second through holes which are circumferentially equidistantly distributed, the second limiting plates are fixedly connected with guide plates which are circumferentially equidistantly distributed, and the guide plates are positioned at the adjacent second through holes.
More preferably, the guide plate is inclined, and one side of the guide plate away from the adjacent second limiting plate is in a blade shape.
The invention has the following advantages: according to the invention, through the staggered rotation of the second helical blade and the first helical blade, the materials are fully crushed, the subsequent materials are fully plasticized, the materials in the extrusion barrel are uniformly heated and plasticized through the reciprocating rotation of the electric heating sleeve and the heating plate in the heating mechanism, so that the quality of the subsequent extruded products is guaranteed, the materials are extruded and cut through the rotation of the first limiting plate and the cutting knife in the material overturning mechanism, the plasticizing rate of the materials is further improved, the liquid in the cooling mechanism passes through the second guide hole on the third rotating frame and then is matched with the outer gear ring and the third spur gear in the rotating assembly, the liquid in the third rotating frame pre-cools the extruded materials, the appearance of the extruded materials is guaranteed, the temperature of the extruded materials is guaranteed to be uniform, the compactness of the plasticized materials in the extrusion barrel is kept consistent through the movement of the third helical blade in the extrusion mechanism, the plasticized materials are prevented from containing bubbles in the extrusion barrel, and the plasticized materials in the extrusion barrel are preliminarily compacted through the second limiting plate and the guide plate in the limiting mechanism, so that the gas is prevented from being contained between the materials.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a first cross-sectional view of the present invention.
Fig. 3 is a second cross-sectional view of the present invention.
Fig. 4 is a schematic perspective view of a heating mechanism according to the present invention.
Fig. 5 is a schematic perspective view of the components in the extrusion barrel of the present invention.
Fig. 6 is a schematic perspective view of the material turning mechanism of the present invention.
Fig. 7 is a schematic perspective view of a cooling mechanism according to the present invention.
Fig. 8 is a cross-sectional view of the cooling mechanism of the present invention.
Fig. 9 is a cross-sectional view of a third turret according to the invention.
Fig. 10 is a cross-sectional view of the pressing mechanism of the present invention.
Fig. 11 is a cross-sectional view of a first stationary housing of the present invention.
The marks of the components in the drawings are as follows: 1. the device comprises a support, 101, a power unit, 102, an extrusion cylinder, 103, an extrusion die head, 104, a rotating shaft, 105, a first helical blade, 106, a first straight gear, 107, a second straight gear, 108, a first rotating frame, 109, a rotating disc, 110, a second helical blade, 2, a transmission shaft, 201, a protective shell, 202, a second rotating frame, 203, an electric heating sleeve, 2031, a heating plate, 204, a fixed plate, 205, an arc rod, 206, a spring, 3, a first limiting plate, 301, a cutting knife, 4, a first fixed shell, 401, a guide groove, 402, a spline rod, 403, a third helical blade, 404, a first through hole, 5, a second limiting plate, 501, a second through hole, 502, a guide plate, 6, a third rotating frame, 601, a second fixed shell, 602, a third fixed shell, 603, an annular chamber, 604, a first guide hole, 605, a second guide hole, 701, a third straight gear, 7 and an outer gear ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: 1-3, comprising a support 1, a control panel is arranged on the right part of the upper surface of the support 1, a power unit 101 is fixedly connected on the right part of the upper surface of the support 1 through a bracket, an extrusion cylinder 102 is fixedly connected on the left part of the upper surface of the support 1 through a bracket, a feed hopper is arranged on the right part of the upper side surface of the extrusion cylinder 102, an extrusion die head 103 is arranged on the left side of the extrusion cylinder 102, the power unit 101 consists of a driving motor and a gear box, an output shaft of the driving motor is fixedly connected with a right transmission shaft of the gear box, a rotating shaft 104 is arranged on the left transmission shaft of the gear box, the rotating shaft 104 is positioned in the extrusion cylinder 102, a first helical blade 105 is fixedly connected on the left part of the rotating shaft 104, the first helical blade 105 is positioned in the extrusion cylinder 102, the pitch of the first helical blade 105 is gradually reduced from right to left and used for compacting materials, a first straight gear 106 is fixedly connected on the right part of the rotating shaft 104, the first straight gear 106 is positioned between the extrusion cylinder 102 and the power unit 101, the support 1 is rotatably provided with a second straight gear 107 meshed with the first straight gear 106 through a connecting rod, the right side of the extrusion cylinder 102 is rotatably provided with a first rotating frame 108, the right side of the first rotating frame 108 is fixedly connected with a rotating disc 109, the rotating disc 109 is provided with an annular gear, the annular gear of the rotating disc 109 is meshed with the second straight gear 107, the left side surface of the first rotating frame 108 is fixedly connected with a second helical blade 110, the second helical blade 110 is positioned between the extrusion cylinder 102 and the first helical blade 105, the helical direction of the second helical blade 110 is opposite to the helical direction of the first helical blade 105, the support 1 is provided with a heating mechanism for uniformly heating materials so as to facilitate full plasticization of the materials, the first helical blade 105 is provided with a material overturning mechanism for pushing the materials in sequence, the extrusion die head 103 is provided with a cooling mechanism for uniformly cooling down, the temperature of the extruded materials is kept consistent, the quality of the extruded products is guaranteed, and the power unit 101, the heating mechanism and the cooling mechanism are electrically connected with the control panel of the support 1.
Referring to fig. 2 and 4, the heating mechanism includes a transmission shaft 2, the transmission shaft 2 rotates through the supporting shoe to set up in the lower surface of support 1, the protective housing 201 has been inlayed at support 1's right part, transmission shaft 2 and pivot 104 all penetrate protective housing 201 and rotate rather than being connected, pass through sprocket and chain drive between transmission shaft 2 and the pivot 104, and sprocket and chain all are located protective housing 201, the left part rigid coupling of transmission shaft 2 has second rotating frame 202, support 1's left part is equipped with the rectangular hole, extrusion barrel 102's left part is equipped with two spacing rings, rotate between extrusion barrel 102's two spacing rings and be provided with electric heating sleeve 203, electric heating sleeve 203's right part rigid coupling has three hot plate 2031 that circumference equidistance distributes, electric heating sleeve 203 and three hot plate 2031 all are connected with support 1's control panel electricity, electric heating sleeve 203 downside's left part rigid coupling has the fixed plate 204 that is located rectangular hole on support 1, extrusion barrel 102 has arc pole 205 through the connecting plate rigid coupling, arc pole 205 is located electric heating sleeve 203's downside, arc pole 205 penetrates fixed plate 204 and is connected with it to slide, be equipped with rectangular hole between the connecting plate 204 and the connecting plate 205, be equipped with two spacing rings, the elastic sleeve 206 is rotated in the connecting plate 206, the material is fully heated in the process by the rotating sleeve 203, the rotating plate is equipped with three hot plate 203, the material is well-pressed down in the material is guaranteed by the connecting plate with the arc plate, and the rotating plate is rotated by the connecting plate 206, and has the material is fully heated by the elastic material in the material.
Referring to fig. 5 and 6, the material turning mechanism includes a plurality of first limiting plates 3 distributed circumferentially at equal intervals, the plurality of first limiting plates 3 are fixedly connected to the left side surface of the first helical blade 105, the first limiting plates 3 are in contact with the rotating shaft 104, the first limiting plates 3 are obliquely arranged, the first helical blade 105 drives the plurality of first limiting plates 3 to rotate, the first limiting plates 3 extrude materials to be close to the inner wall of the extrusion barrel 102, the materials are fully plasticized by the heating of the electric heating sleeve 203, each first limiting plate 3 is fixedly connected with three cutting knives 301 which are uniformly distributed, and the first limiting plates 3 and the adjacent three cutting knives 301 are in a group.
Referring to fig. 7-9, the cooling mechanism includes a third rotating frame 6, the third rotating frame 6 rotates and is disposed at the outer side of the extrusion die head 103, the extrusion die head 103 is fixedly connected with a second fixing shell 601 and a third fixing shell 602 through a connecting rod, the second fixing shell 601 is located at the left side of the third fixing shell 602, the second fixing shell 601 and the third fixing shell 602 are both rotationally connected with the third rotating frame 6, the upper side of the second fixing shell 601 and the upper side of the third fixing shell 602 are both provided with conduits, a liquid circulation unit is communicated between the conduits of the second fixing shell 601 and the conduits of the third fixing shell 602, the liquid circulation unit is composed of a liquid storage shell, two hoses and a water suction pump, the two hoses are respectively connected with the conduits of the second fixing shell 601 and the conduits of the third fixing shell 602, the liquid circulation unit is electrically connected with a control panel of the support 1, the third rotating frame 6 is provided with two annular chambers 603 which are bilaterally symmetrical, a plurality of first guide holes 604 which are uniformly distributed and a plurality of second guide holes 605 which are uniformly distributed at equal intervals, the second fixing shell 601 is communicated with the annular chambers 603 which are uniformly distributed through the first annular chambers 604 on the left side and the right side, the second fixing shell 601 is uniformly distributed through the first annular chambers 603 which are uniformly distributed through the first annular chambers 603, the annular chambers 603 which are communicated with the second annular chambers which are uniformly distributed through the annular chambers 603, and the second annular chambers which are uniformly distributed through the annular chambers which are uniformly distributed, and are uniformly distributed through the annular chambers, and are uniformly distributed through the annular control layer 605, and are uniformly distributed through the annular control layer 602, and are each annular chamber 602, and are each control layer.
Referring to fig. 7, the rotating assembly includes an outer gear ring 7, the outer gear ring 7 is fixedly connected to the outer side of the third rotating frame 6, and the outer gear ring 7 is located between the second fixing shell 601 and the third fixing shell 602, a third spur gear 701 meshed with the outer gear ring 7 is fixedly connected to the left end of the transmission shaft 2, during the rotation of the transmission shaft 2, the transmission shaft 2 rotates the third rotating frame 6 through the third spur gear 701 and the outer gear ring 7, so that the temperature of the extruded material is kept uniform even if the cooling liquid in the third rotating frame 6 rotationally absorbs the heat at the extruding die 103, and the quality of the extruded product is ensured.
An operator starts the power unit 101, the electric heating sleeve 203, the three heating plates 2031 and the liquid circulation unit through the control panel of the support 1, simultaneously continuously and uniformly adds materials into the hopper of the extrusion barrel 102, the power unit 101 works to drive the rotating shaft 104 to rotate (taking fig. 2 as an example, the rotating shaft 104 rotates clockwise at the moment when the rotating shaft 104 rotates clockwise, the rotating shaft 104 drives the first spiral blade 105 to rotate, the first spiral blade 105 rotates to push the materials to move leftwards, the first spiral blade 105 gradually extrudes the leftwards moved materials due to the fact that the pitch of the first spiral blade 105 gradually becomes smaller from right to left, the materials in the leftward conveying process are gradually gathered and compacted, meanwhile, the rotating shaft 104 rotates to drive the inner gear ring of the rotating disc 109 through the first spur gear 106 and the second spur gear 107, the rotating disc 109 rotates to drive the first rotating frame 108 and the second spiral blade 110 to rotate, at the moment, the rotating direction of the second spiral blade 110 is opposite to the rotating direction of the first spiral blade 105, but the second spiral blade 110 still pushes the materials leftwards, and simultaneously, in the process of rotating the second spiral blade 105, the materials are continuously cut and the materials are added into the extrusion barrel 102 at the staggered position of the two.
In the process of conveying materials to the left by rotating the first spiral blade 105, the electric heating sleeve 203 and the three heating plates 2031 work to heat and plasticize the materials added into the extrusion cylinder 102, heating rods which are uniformly distributed in the circumferential direction are arranged in the electric heating sleeve 203, wherein the three heating plates 2031 preheat the materials positioned at the second spiral blade 110, then the electric heating sleeve 203 sufficiently heats and plasticizes the materials moving into the electric heating sleeve, meanwhile, the rotating shaft 104 rotates and drives the transmission shaft 2 to rotate through a chain wheel in the protective shell 201 and the connecting belt, the transmission shaft 2 drives the second rotating frame 202 to rotate to squeeze the fixed plate 204, the fixed plate 204 is squeezed to drive the electric heating sleeve 203 and the three heating plates 2031 to rotate, meanwhile, the fixed plate 204 rotates to squeeze the spring 206, after the second rotating frame 202 is separated from the fixed plate 204, the fixed plate 204 and the electric heating sleeve 203 reversely rotate to reset under the elastic force of the spring 206, namely, the electric heating sleeve 203 and the three heating plates 2031 swing and heat the materials in the extrusion cylinder 102, so that the heating rods on the electric heating sleeve 203 uniformly heat the materials in the extrusion cylinder 102, and uniformly plasticize the materials in the extrusion cylinder 102.
The first helical blade 105 rotates and drives the first limiting plates 3 and the cutting knives 301 to rotate, and as the first limiting plates 3 are obliquely arranged, the first limiting plates 3 extrude materials to be close to the inner wall of the extrusion barrel 102 in the rotation process, even if the materials are sufficiently close to the electric heating sleeve 203 for plasticizing by heating, the three cutting knives 301 on the first limiting plates 3 cut plasticized materials in the conveying process, so that the cutting of material blocks is reduced, and the follow-up electric heating sleeve 203 is convenient for completely plasticizing the materials.
The fully plasticized material is then accumulated at the extrusion die 103, the following first screw blade 105 continues to rotate to push the plasticized material to be extruded from the extrusion die 103, and during the extrusion process of the material, the control panel starts the liquid circulation unit to work, so that the cooling liquid enters the left annular chamber 603 through the guide pipe of the second fixing shell 601 and the left first guide holes 604, then the cooling liquid enters the right annular chamber 603 through the second guide holes 605 which are circumferentially and equidistantly distributed, then the cooling liquid reenters the liquid circulation unit through the right first guide holes 604 and the pipelines of the third fixing shell 602, and the cooling liquid in the flowing process absorbs heat in the extruded material to pre-cool and shape the material in the extrusion process.
In the flowing process of the cooling liquid, along with the rotation of the rotating shaft 104, the rotating shaft 104 drives the transmission shaft 2 and the third spur gear 701 to rotate through the chain wheel and the chain, the third spur gear 701 rotates to drive the outer gear ring 7 and the third rotating frame 6 to rotate, the third rotating frame 6 rotates, and the liquid in the flowing process circumferentially rotates to absorb heat at the extrusion die head 103, so that the uniform cooling at the extrusion die head 103 is ensured, the temperature of the extruded material is ensured to be kept uniform, and the quality of a finished product is improved.
Example 2: on the basis of embodiment 1, refer to fig. 5, 10 and 11, the device further comprises an extruding mechanism, the extruding mechanism is arranged on the extruding cylinder 102, the extruding mechanism is used for extruding materials in the extruding cylinder 102, the extruding mechanism comprises a first fixed shell 4, the first fixed shell 4 is fixedly connected to the left part of the inner side wall of the extruding cylinder 102, the first fixed shell 4 is provided with a wavy guide groove 401, a spline rod 402 is rotatably arranged on the right part of the first fixed shell 4, the spline rod 402 is provided with a convex column, the convex column of the spline rod 402 is in limit fit with the guide groove 401, the rotating shaft 104 is provided with a sliding groove, the spline rod 402 slides in the sliding groove of the rotating shaft 104, the side wall of the spline rod 402 is fixedly connected with a third helical blade 403, the pitch of the third helical blade 403 is consistent with the pitch of the left part of the first helical blade 105, the third helical blade 403 is in sliding connection with the rotating shaft 104, a plurality of first through holes 404 distributed at equal intervals circumferentially are arranged, the first through holes 404 are obliquely arranged, in the rotating process of the rotating shaft 104, the rotating shaft 104 drives the spline rod 402 and the third helical blade 403 to rotate together, and then the spline rod 403 is driven by the guide groove 401 to reciprocate, namely, the spline rod is driven by the spline rod 401 to reciprocate, and the right and the material is driven to reciprocate, and the spline rod moves, namely, and the material is moved in the process to the right, and the spline rod is reset, and the right is reset, and the spline rod is moved.
Referring to fig. 6, the plastic extruding device further comprises a limiting mechanism, the limiting mechanism is arranged on the rotating shaft 104, the limiting mechanism is used for enabling the plasticizing material to be filled in the extruding cylinder 102, the limiting mechanism comprises two second limiting plates 5 which are evenly distributed, the two second limiting plates 5 are fixedly connected to the rotating shaft 104, the two second limiting plates 5 are located on the right side of the third spiral blade 403, the second limiting plates 5 are provided with three second through holes 501 which are circumferentially equidistant, the right side face of each second limiting plate 5 is fixedly connected with three guide plates 502 which are circumferentially equidistant, each guide plate 502 is located at the adjacent second through hole 501, each guide plate 502 is inclined, the right side of each guide plate 502 is in a blade shape, in the process of driving the first spiral blade 105 to rotate and convey the material through the rotating shaft 104, the two second limiting plates 5 intercept the material, the material is gathered and compacted at the position, gas between the plasticizing materials is reduced, and then the compacted material is continuously conveyed backwards through the second through holes 501.
In the process of conveying plasticized materials leftwards by rotating the first spiral blade 105, the materials are sequentially subjected to the limiting action of the two second limiting plates 5, so that the leftwards moving speed of the materials is slowed down, meanwhile, the plasticized materials are compacted and fully filled in the extrusion cylinder 102, meanwhile, the rotating shaft 104 rotates to drive the two second limiting plates 5 and the six guide plates 502 to rotate together, the guide plates 502 are cut by the edge sides of the guide plates 502 in the rotating process, the materials are attached to the guide plates 502 and pass through the adjacent second through holes 501, and the materials are continuously subjected to the rotating extrusion action of the first spiral blade 105, so that the compacted materials move leftwards.
When the plasticized material moves left and enters the third helical blade 403, along with the rotation of the rotating shaft 104, the rotating shaft 104 drives the spline rod 402 and the third helical blade 403 to synchronously rotate through the upper sliding groove of the rotating shaft, meanwhile, in the rotating process of the spline rod 402, the convex column of the spline rod 402 is extruded by the guide groove 401, the spline rod 402 moves left and right in the rotating process in a reciprocating manner due to the fact that the guide groove 401 is wavy, the spline rod 402 moves left and right in a reciprocating manner, the third helical blade 403 is driven to move left and right together, and the third helical blade 403 moves left and right to extrude the plasticized material between the third helical blade 403 and the first helical blade 105 (in the moving process of the third helical blade 403 left and right, the third helical blade 403 is always not contacted with the first helical blade 105).
The extruded plasticizing material passes through the first through holes 404 on the third spiral blade 403, and in the process, the plasticized material is extruded by the third spiral blade 403, so that the compactness of the plasticizing material in the extrusion barrel 102 is further kept consistent, the quality of an extruded finished product is improved, and meanwhile, under the extrusion action of the third spiral blade 403, the gas in the material is enabled to approach the inner wall of the extrusion barrel 102 through the first through holes 404, and the phenomenon that the extruded material contains bubbles is avoided.
The final, fully plasticized and consistently compacted material is moved to the right of the extrusion die 103, and the above operation is repeated in the next step, so that the material is gradually extruded from the extrusion die 103 and a finished product is formed.
The above description of embodiments of the invention has been presented with reference to the drawings and is not intended to limit the scope of the claims. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the present invention shall fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a single screw extruder, including support (1), support (1) are equipped with control panel, and support (1) have power unit (101) and extrusion section of thick bamboo (102) through the support rigid coupling, and extrusion section of thick bamboo (102) are equipped with the loading hopper, and extrusion die head (103) are installed to one side that power unit (101) were kept away from to extrusion section of thick bamboo (102), and pivot (104) are installed in power unit (101), and pivot (104) are located extrusion section of thick bamboo (102), and pivot (104) rigid coupling has first helical blade (105), its characterized in that: still including first gear (106), first gear (106) rigid coupling is in pivot (104), support (1) are provided with second gear (107) through the connecting rod rotation, second gear (107) and first gear (106) meshing, one side rotation that extrusion barrel (102) is close to power unit (101) is provided with first rotating frame (108), first rotating frame (108) rigid coupling has rolling disc (109), rolling disc (109) are equipped with the ring gear with second gear (107) meshing, one side rigid coupling that rolling disc (109) was kept away from to first rotating frame (108) has second helical blade (110), second helical blade (110) are located between extrusion barrel (102) and first helical blade (105), support (1) are equipped with the heating mechanism of evenly heating material, first helical blade (105) are equipped with the turn-down mechanism that is used for bulldozing the material in proper order, extrusion die head (103) are equipped with the cooling body that is used for even cooling, power unit (101), heating mechanism and cooling body all are connected with the control panel electricity of support (1).
2. A single screw extruder as claimed in claim 1, wherein: the first helical blade (105) is tapered from the power unit (101) in the direction of the extrusion die head (103) for compacting the material.
3. A single screw extruder as claimed in claim 1, wherein: the heating mechanism comprises a transmission shaft (2), the transmission shaft (2) rotates through the supporting shoe to be set up in support (1), support (1) has inlayed protective housing (201), transmission shaft (2) and pivot (104) all penetrate protective housing (201) and rotate rather than being connected, pass through sprocket and chain drive between transmission shaft (2) and pivot (104), sprocket and chain are located protective housing (201), transmission shaft (2) rigid coupling has second rotating frame (202), support (1) are equipped with the rectangular hole, spacing rotation of extrusion tube (102) is provided with electric heating sleeve (203), electric heating sleeve (203) rigid coupling has hot plate (2031) that circumference equidistance distributes, electric heating sleeve (203) and hot plate (2031) that circumference equidistance distributes all are connected with the control panel electricity of support (1), electric heating sleeve (203) rigid coupling has fixed plate (204) that are located rectangular hole on support (1), extrusion tube (102) have arc pole (205) through the connecting plate rigid coupling, arc pole (205) penetrate fixed plate (204) and with its sliding connection, fixed plate (204) and fixed plate (206) between fixed plate (204) and the connecting plate of arc pole (205) rigid coupling have spring (202) and second rotating frame (202).
4. A single screw extruder as claimed in claim 1, wherein: the material turning mechanism comprises first limiting plates (3) distributed at equal intervals in the circumferential direction, the first limiting plates (3) distributed at equal intervals in the circumferential direction are fixedly connected to the first spiral blades (105), the first limiting plates (3) are obliquely arranged, and cutting knives (301) distributed uniformly are fixedly connected to the first limiting plates (3).
5. A single screw extruder as claimed in claim 1, wherein: the cooling mechanism comprises a third rotating frame (6), the third rotating frame (6) is rotationally arranged on an extrusion die head (103), the extrusion die head (103) is fixedly connected with a second fixing shell (601) and a third fixing shell (602) through connecting rods, the second fixing shell (601) and the third fixing shell (602) are rotationally connected with the third rotating frame (6), the second fixing shell (601) and the third fixing shell (602) are respectively provided with a guide pipe, a liquid circulation unit is communicated between the guide pipe of the second fixing shell (601) and the guide pipe of the third fixing shell (602), the liquid circulation unit is electrically connected with a control panel of a support (1), the third rotating frame (6) is provided with two symmetrical annular chambers (603), first guide holes (604) which are uniformly distributed and second guide holes (605) which are uniformly distributed in circumferential direction, the second fixing shell (601) and the third fixing shell (602) are respectively communicated with adjacent annular chambers (603) through the adjacent first guide holes (604), the second guide holes (605) which are uniformly distributed in circumferential direction are communicated with each other, and the third rotating frame (6) is uniformly rotates.
6. A single screw extruder as set forth in claim 5 wherein: the rotating assembly comprises an outer gear ring (7), the outer gear ring (7) is fixedly connected to a third rotating frame (6), the outer gear ring (7) is located between a second fixing shell (601) and a third fixing shell (602), a third spur gear (701) is fixedly connected to the transmission shaft (2), and the third spur gear (701) is meshed with the outer gear ring (7).
7. A single screw extruder as claimed in claim 1, wherein: still including the extrusion mechanism that is used for extruding the interior material of extrusion section of thick bamboo (102), the extruder constructs and sets up in extrusion section of thick bamboo (102), extrusion mechanism is including first fixed shell (4), first fixed shell (4) rigid coupling is in extrusion section of thick bamboo (102), first fixed shell (4) are equipped with guide way (401), guide way (401) are the wave, first fixed shell (4) rotate and are provided with spline pole (402), spline pole (402) are equipped with guide way (401) complex projection, pivot (104) are equipped with spline pole (402) spacing gliding spout, spline pole (402) rigid coupling has third helical blade (403), third helical blade (403) and pivot (104) sliding connection, third helical blade (403) are equipped with first through-hole (404) that circumference equidistance distributes.
8. A single screw extruder as claimed in claim 7, wherein: the first through hole (404) is obliquely arranged and is used for guiding the material to be close to the inner wall of the extrusion cylinder (102).
9. A single screw extruder as claimed in claim 1, wherein: still including stop gear, stop gear sets up in pivot (104), and stop gear is including evenly distributed's second limiting plate (5), and evenly distributed's second limiting plate (5) all rigid coupling is in pivot (104), and second limiting plate (5) are equipped with second through-hole (501) that circumference equidistance was distributed, and second limiting plate (5) rigid coupling has deflector (502) that circumference equidistance was distributed, and deflector (502) are located adjacent second through-hole (501).
10. A single screw extruder as claimed in claim 9, wherein: the guide plate (502) is arranged in an inclined shape, and one side of the guide plate (502) away from the adjacent second limiting plate (5) is in a blade shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311098814.9A CN116811194B (en) | 2023-08-30 | 2023-08-30 | Single screw extruder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311098814.9A CN116811194B (en) | 2023-08-30 | 2023-08-30 | Single screw extruder |
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|---|---|
| CN116811194B (en) | 2023-12-01 |
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